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EWG's Tap Water Database — 2021 UPDATE

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2,4,5-TP (Silvex)

Suburban East Salem WD

NOTE: Suburban East Salem WD purchases water from Salem Public Works which is required to test for 2,4,5-tp (silvex). Sample information shown below was taken by Salem Public Works.

2(2,4,5-trichlorophenoxy) propionic acid (2,4,5-TP or Silvex) is a cancer-causing herbicide banned in the U.S. in 1985 because of its toxicity. It is still detected as a groundwater contaminant in areas where it was sprayed or stored.

MORE ABOUT THIS CONTAMINANT

 

15

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND30ND
2015ND20ND
2016ND30ND
2017ND30ND
2018ND10ND
2019ND30ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 3 ppb

The EWG Health Guideline of 3 ppb for 2,4,5-TP was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against harm to internal organs.

EPA Maximum Contaminant
Level (MCL) 50 ppb

ppb = parts per billion

All test results

NOTE: Suburban East Salem WD purchases water from Salem Public Works which is required to test for 2,4,5-tp (silvex). Sample information shown below was taken by Salem Public Works.

Date Lab ID Result
2014-02-10201402110122-SND
2014-04-30201405010614-SND
2014-06-30201407010127-SND
2015-01-29201501300125-SND
2015-05-18201505070224-SND
2016-05-11201604140078-SND
2016-08-23201608050473-SND
2016-11-30201611280122-SND
2017-01-31201702010756-SND
2017-04-11201704131257-SND
2017-06-01201706020201-SND
2018-01-24201801250239-SND
2019-02-07201902080338-SND
2019-08-15201908160799-SND
2019-10-10201910110546-SND